Bi2 Air AR
ENGLISH
EN - 9
Tab_2 (diagram “B”)
Led status Mode of operation
O Board in Stand-by (contact CV open)
On Board on (contact CV closed)
1 Blink
Temperature H2O > 20°C in summer mode or
Temperature H2O < 30°C in winter mode
2 Blinks Motor locked/disconnected or safety grille open
3 Blinks Water temperature sensor open or short circuited
4 Blinks
THIS SIGNAL IS NOT AN ALARM
At every start-up, the system checks the software version of the power board
5 Blinks The motor feedback indicates a speed > 1400 rpm
6 Blinks
The motor feedback indicates a speed < 100 rpm
(see locked fan function)
*
The water sensor is optional.
If it is connected, the board will allow operation of the fan only with water
temperature suitable for the selected mode of operation (higher than 30°C in
winter mode and lower than 20°C in summer mode).
If it is not connected, the board shall not carry out any check of water temperature.
**
When the use of the water probe is envisaged, it is NECESSARY to select Winter/
Summer mode by means of the contact E/I.
Open = Winter
Closed = Summer
WITHOUT FLAP
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